<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus'
//使用路由，导出useRouter函数
import { useRouter } from 'vue-router';
const router = useRouter()

import { useTokenStore } from '@/stores/token.js'
const tokenstore = useTokenStore();

//调用后台接口，完成注册
import { userRegisterService, userLoginService } from '@/api/user.js'

//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)

//定义注册和登录的数据模型
const registerData = ref({
    userName: '',
    passWord: '',
    rePassWord: ''
})
//自定义确认密码的校验函数
const rePasswordValid = (rule, value, callback) => {
    if (value === '') callback(new Error('请再次确认密码'))
    else if (value !== registerData.value.passWord) callback(new Error('请确保两次输入的密码一样'))
    else callback()
}
//用于注册的表单校验模型
const registerDataRules = ref({
    userName: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 5, max: 16, message: '用户名的长度必须为5~16位', trigger: 'blur' }
    ],
    passWord: [
        { required: true, message: '请输入密码', trigger: 'blur' },
        { min: 5, max: 16, message: '密码长度必须为5~16位', trigger: 'blur' }
    ],
    rePassWord: [
        { validator: rePasswordValid, trigger: 'blur' }
    ]
})

const register = async () => {
    console.log(registerData.value);
    let result = await userRegisterService(registerData.value);
    console.log(result);
    if (result.code == 0) {
        ElMessage.success('注册成功')
        registerData.value.userName = '';
        registerData.value.passWord = '';
        registerData.value.rePassWord = '';
        isRegister.value = false
    }
    else {
        ElMessage.error(result.message ? result.message : '注册失败')
    }
}
const cleardata = () => {
    registerData.value.userName = '';
        registerData.value.passWord = '';
        registerData.value.rePassWord = '';
    isRegister.value = true;
}
const login = async () => {
    let result = await userLoginService(registerData.value);
    if (result.code == 0) {
        ElMessage.success('登录成功')
        //把得到的token存储到pinia中
        console.log(result.data);
        tokenstore.setToken(result.data)
        console.log(tokenstore.token);
        router.push('/') //跳转页面
    }
    else {
        //失败
        ElMessage.error(result.message ? result.message : '登录失败');
    }
}
</script>

<template>
    <el-row class="login-page">
        <el-col :span="15" class="bg"></el-col>
        <el-col :span="7" :offset="1" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model="registerData"
                :rules="registerDataRules">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="userName">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.userName"></el-input>
                </el-form-item>
                <el-form-item prop="passWord">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registerData.passWord"></el-input>
                </el-form-item>
                <el-form-item prop="rePassWord">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请再次输入密码"
                        v-model="registerData.rePassWord"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else>
                <el-form-item>
                    <h1>轻量级城镇道路养护信息管理系统</h1>
                </el-form-item>
                <el-form-item>
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.userName"></el-input>
                </el-form-item>
                <el-form-item>
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registerData.passWord"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="cleardata">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>
<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;
    .bg {
        background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
            url('@/assets/login_bg.jpg') no-repeat center / cover;
        border-radius: 0 20px 20px 0;
    }
    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;
        .title {
            margin: 0 auto;
        }
        .button {
            width: 100%;
        }
        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>